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/* $Id: VBoxCommon.cpp $ */
/** @file
* VBoxCommon - Misc helper routines for install helper.
*
* This is used by internal/serial.cpp and VBoxInstallHelper.cpp.
*/
/*
* Copyright (C) 2008-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/win/windows.h>
#include <msi.h>
#include <msiquery.h>
#include <iprt/string.h>
#include <iprt/utf16.h>
UINT VBoxGetMsiProp(MSIHANDLE hMsi, const WCHAR *pwszName, WCHAR *pwszValueBuf, DWORD cwcValueBuf)
{
RT_BZERO(pwszValueBuf, cwcValueBuf * sizeof(pwszValueBuf[0]));
/** @todo r=bird: why do we need to query the size first and then the data.
* The API should be perfectly capable of doing that without our help. */
DWORD cwcNeeded = 0;
UINT uiRet = MsiGetPropertyW(hMsi, pwszName, L"", &cwcNeeded);
if (uiRet == ERROR_MORE_DATA)
{
++cwcNeeded; /* On output does not include terminating null, so add 1. */
if (cwcNeeded > cwcValueBuf)
return ERROR_MORE_DATA;
uiRet = MsiGetPropertyW(hMsi, pwszName, pwszValueBuf, &cwcNeeded);
}
return uiRet;
}
#if 0 /* unused */
/**
* Retrieves a MSI property (in UTF-8).
*
* Convenience function for VBoxGetMsiProp().
*
* @returns VBox status code.
* @param hMsi MSI handle to use.
* @param pcszName Name of property to retrieve.
* @param ppszValue Where to store the allocated value on success.
* Must be free'd using RTStrFree() by the caller.
*/
int VBoxGetMsiPropUtf8(MSIHANDLE hMsi, const char *pcszName, char **ppszValue)
{
PRTUTF16 pwszName;
int rc = RTStrToUtf16(pcszName, &pwszName);
if (RT_SUCCESS(rc))
{
WCHAR wszValue[1024]; /* 1024 should be enough for everybody (tm). */
if (VBoxGetMsiProp(hMsi, pwszName, wszValue, sizeof(wszValue)) == ERROR_SUCCESS)
rc = RTUtf16ToUtf8(wszValue, ppszValue);
else
rc = VERR_NOT_FOUND;
RTUtf16Free(pwszName);
}
return rc;
}
#endif
UINT VBoxSetMsiProp(MSIHANDLE hMsi, const WCHAR *pwszName, const WCHAR *pwszValue)
{
return MsiSetPropertyW(hMsi, pwszName, pwszValue);
}
UINT VBoxSetMsiPropDWORD(MSIHANDLE hMsi, const WCHAR *pwszName, DWORD dwVal)
{
wchar_t wszTemp[32];
RTUtf16Printf(wszTemp, RT_ELEMENTS(wszTemp), "%u", dwVal);
return VBoxSetMsiProp(hMsi, pwszName, wszTemp);
}
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